... LWN.net FAQ . ... Read-copy-update (RCU) is a mutual exclusion technique which can operate without locking most of the time. It can yield significant performance benefits when the data to be protected is accessed via a pointer, is read frequently, changed rarely, and references to the structure are not held while a kernel thread sleeps. The core idea behind RCU is that, when the data requires updating, a pointer to a new structure containing the new data can be stored immediately. ...

... Next: FITS Checksum Verification Up: Data Models and Previous: A Proposed Convention . ... The FITSIO Subroutine Library has been available for 3 years, and has matured into a stable, full-featured interface for reading and writing FITS format files. ... The FITSIO subroutine library for reading and writing FITS files is now three years old and is used by many projects as the standard programming interface for accessing FITS format data files. ...

... Tonight's Sky . ... The Magazine . ... Star Atlas . ... An artificial comet holds secrets to Earths life . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... The planet has extreme temperature swings and perhaps active lava flows. ... A digital supplement to Astronomy magazine. ... Join TravelQuest International with Astronomy and Discover magazines on one of three great tour options surrounding this celestial spectacle . ... Astronomy Magazine . ...

... Powered by Twitter Tools . ... 101) Байки из Фидо (7) Литература (16) Листая страницы прошлого Выберите месяц Апрель 2016 (2) Март 2016 (4) Февраль 2016 (4) Январь 2016 (5) Декабрь 2015 (4) Ноябрь 2015 (3) Октябрь 2015 (5) Сентябрь 2015 (5) Август 2015 (5) Июль 2015 (5) Июнь 2015 (4) Май 2015 (8) Апрель 2015 (5) Март 2015 (4) Февраль 2015 (4) Январь 2015 (7) Декабрь 2014 (7) Ноябрь 2014 (4) Октябрь 2014 (5) Сентябрь 2014 (8) Август 2014 (8) Июль 2014 (6) Июнь 2014 (7) Май 2014 (11) Апрель...

... AstroImageJ (AIJ) .. ... Reads and writes FITS images with standard headers . ... Provides a time and coordinate converter tool with capability to update/enhance FITS header content (AIRMASS, BJD, etc.) ... Creates color images and with native ImageJ processing power . ... AstroImageJ_Updater . Update operation now updates AIJ version number in Info.plist CFBundleVersion and CFBundleShortVersionString (MacOSX only) . ... AstroImageJ is ImageJ with astronomy plugins and macros installed. ...

... R-FITS is an R library designed to enable reading in FITS format files into the R environment. ... You must already have R and cfitsio installed. ... To install, first download the tar file that contains all the necessary files to a suitable directory (e.g., /path/to/rfits/installation/directory/ ) and then type cd /path/to/rfits/installation/directory/ gunzip -c rfits.tar.gz | ... rfits_read_image(file,hdu=1) . rfits_read_col(file,col=1,width=1,hdu=2) . rfits_read_key(file,key,hdu=2) . ...

Present section contains two Tables: the first one lists the names of all minor planets in alphabetic order as of the last updating of the Table. ... For each minor planet the Table, apart from number represents also the name of minor planet, if any, and its principal preliminary designation. ... Apart these preliminary designations special ones are used for minor planets discovered in the course of special surveys, undertaken between 1960 and 1977. ... Survey . ... Second Trojan Survey (1973) . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Monthly Sky Notes . ... By admin January 21, 2011 Posted in: Robot Exploration . A UFO hovers in the Martian sky (Image credit:NASA/JPL) . The car-sized Mars Science Laboratory Curiosity is too heavy to slam into the rocky plains of Mars encased in airbags like its predecessors, so this imaginative and complex system was devised instead. ... Is there a video anywhere on the internet of a test of the ?sky crane? rockets? ...

... Updated 2007 December 11th . ... Updated 2007 November 29th . ... Updated 2007 November 27th . ... Updated 2007 November 26th . ... Updated 2007 November 12th . ... Updated 2007 November 8th . ... Updated 2007 November 1st . ... Updated 2007 October 29th . ... Updated 2007 August 21st . ... Updated 2007 August 16th . ... Updated 2007 August 14th . ... Updated 2007 August 13th . ... Updated 2007 August 2nd . ... Updated 2007 August 1st . ... Updated 2007 March 29th . ... Updated 2007 March 1st . ...

... Links . ... Hubble space telescope Hubble's Universe and Skywatch video podcast . ... Astronomy picture of the day . ... Bad Astronomy blog . ESO for science users . ... Check the e-Journal access for ESO-users on the ESO-library page. ... Astronomy & Astrophysics . ... Astronomical Journal . ... Astrophysics and Space Science . Chinese Astronomy and Astrophysics . ... Astrophysics and Space Science Proceedings . New pages in the SciOps wiki (internal, only inside ESO web) Rivi; Sep 2007 ...

... These HTML pages can be downloaded from SET.GMD.DE (/pub/misc/XFree86OS2/html) by FTP. This is XFree86 for OS/2, version 3.3.6 You don't have to download all files; just get the marked required files first, and then read the files and decide what you further need. ... Latest Information required (LATEST.OS2) . ... There are two flavours available, the full server and the small server which does not have the seldomly used PEX, XI, XIE extensions built in. 8514 server, full small (X8514.zip) . ...

... In any case, check pmenv.pl (at Parkes!) to make sure it will read /dev/rmt/1hn. ... Check the disk space in $PM_HOME/bdhunt to make sure that > 2.0 GB are available for the birdiehunting. ... Setup: Orion = master machine (with DLT) for reading data from tape and for doling jobs to slaves Orion = slave machine (1 processor) Perseus = slave machine (2 processors, use perseus0 and perseus1) 0) Login as "pulsar" Make sure crontab is running on each machine you want to use. Check using "crontab -l". ...

NAME htpasswd - Create and update user authentication files SYNOPSIS htpasswd [ - c ] [ - m | ... p ] passwdfile username password htpasswd - n [ - m | ... p ] username password DESCRIPTION htpasswd is used to create and update the flat-files used to store usernames and password for basic authentication of HTTP users. ... Resources available from the httpd Apache web server can be restricted to just the users listed in the files created by htpasswd. ... The user is prompted for the password. ...

The AstroGuide . ... AstroGuide | ... Other Sites . ... AstroGuide Listing . Login . See many more Astronomy Listings by: Category or Alphabet . A site that reviews and compares various telescope models, designs and categories. ... Listed Since June 17, 2002 . ... Web Site . ... Web . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . are trademarks of John Huggins ...

The Nine Planets is best viewed on-line via a graphical WWW browser which displays the pictures in color and supports hypertext link traversal. ... To view the movies and hear the sounds, you'll need additional helper programs. ... I recommend that you use Netscape as your browser. Netscape can display gif and jpeg images directly without need of any additional helper apps. You do need additional helper apps for movies and sounds, however. ... Yahoo's Helper Applications .. ... Tech Help .. ...

... Apache HTTP Server Version 2.2 . ... htpasswd is used to create and update the flat-files used to store usernames and password for basic authentication of HTTP users. ... Resources available from the Apache HTTP server can be restricted to just the users listed in the files created by htpasswd . ... Files managed by htpasswd may contain both types of passwords; some user records may have MD5-encrypted passwords while others in the same file may have passwords encrypted with crypt() . ... Delete user...

... ACE data and predictions for "NOW" (Real-time, window update every 5 min) . ACE data and predictions for last 24 hours (Real-time) . ACE data and predictions for previous day . ACE data and predictions for 3 previous days . ACE data, energy input and predictions for the previous month . ... Latest Kp data . Latest GOES X-ray data . ... ACE RTSW data, Kp index and solar-geophysical forecast are contributed by the U.S. Department of Commerce, NOAA, Space Environment Center. ...

... NIC-FPS is an instrument combining the capabilities of a near-infrared imaging camera with a cryogenic Fabry-Perot etalon currently under development at the Center for Space Astrophysics and Space Astronomy , University of Colorado with support from Rice University , Ball Aerospace and the Astrophysical Research Consortium. It is scheduled to begin operations on the ARC 3.5m telescope at Apache Point Observatory in 2004. ... For full frame images, the FITS file will result in a size of: . ...

... Астронет | ... 2002: Possible comet around the pulsar PSR1257+12 (courtesy Daniel Fischer) . ... A possible fourth, Saturn-like, planet at ~ 40 UA (Joshi & Rasio 1996, Wolszczan 1996) . ... Planetary system around the pulsar PSR 1257+12 . ... Is there a comet cloud around PSR 1257+12? ... Are there really planets around PSR 1257+12? ... abstract . ... Implications of the PSR 1257+12 Planetary System for Isolated Millisecond Pulsars. ... On the verification of the planetary system around PSR 1257+12 ...

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